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The Athena Query Federation SDK defines a set of interfaces and wire protocols that you can implement to enable Athena to delegate portions of it's query execution plan to code that you deploy/write.

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 * Amazon Athena Query Federation SDK
 * %%
 * Copyright (C) 2019 - 2022 Amazon Web Services
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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package com.amazonaws.athena.connector.lambda.serde.v4;

import com.amazonaws.athena.connector.lambda.metadata.GetDataSourceCapabilitiesRequest;
import com.amazonaws.athena.connector.lambda.metadata.MetadataRequest;
import com.amazonaws.athena.connector.lambda.request.FederationRequest;
import com.amazonaws.athena.connector.lambda.security.FederatedIdentity;
import com.amazonaws.athena.connector.lambda.serde.FederatedIdentitySerDe;
import com.amazonaws.athena.connector.lambda.serde.VersionedSerDe;
import com.amazonaws.athena.connector.lambda.serde.v2.MetadataRequestDeserializer;
import com.amazonaws.athena.connector.lambda.serde.v2.MetadataRequestSerializer;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.SerializerProvider;

import java.io.IOException;

import static java.util.Objects.requireNonNull;

public class GetDataSourceCapabilitiesRequestSerDeV4
{
    private GetDataSourceCapabilitiesRequestSerDeV4() {}

    public static final class Serializer extends MetadataRequestSerializer implements VersionedSerDe.Serializer
    {
        private final FederatedIdentitySerDe.Serializer identitySerializer;

        public Serializer(FederatedIdentitySerDe.Serializer identitySerializer)
        {
            super(GetDataSourceCapabilitiesRequest.class, identitySerializer);
            this.identitySerializer = requireNonNull(identitySerializer, "identitySerializer is null");
        }

        @Override
        protected void doRequestSerialize(FederationRequest federationRequest, JsonGenerator jgen, SerializerProvider provider)
                throws IOException
        {
            //NOOP
        }
    }

    public static final class Deserializer extends MetadataRequestDeserializer implements VersionedSerDe.Deserializer
    {
        private final FederatedIdentitySerDe.Deserializer identityDeserializer;

        public Deserializer(FederatedIdentitySerDe.Deserializer identityDeserializer)
        {
            super(GetDataSourceCapabilitiesRequest.class, identityDeserializer);
            this.identityDeserializer = requireNonNull(identityDeserializer, "identityDeserializer is null");
        }

        @Override
        protected MetadataRequest doRequestDeserialize(JsonParser jparser, DeserializationContext ctxt, FederatedIdentity identity, String queryId, String catalogName)
                throws IOException
        {
            return new GetDataSourceCapabilitiesRequest(identity, queryId, catalogName);
        }
    }
}